Spatial relationships between an introduced snapper and native goatfishes on Hawaiian reefs
Biological Invasions
By: B.D. Schumacher and J.D. Parrish
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Abstract
It has been suggested that the introduced blueline snapper (Lutjanus kasmira, Family: Lutjanidae) may adversely affect populations of native fishery species in Hawai'i through competition for spatial or dietary resources, or through predation on young fish. We studied the habitat use patterns of L. kasmira and several native reef fish species using direct observation by SCUBA divers. Habitat use patterns of the yellowtail goatfish (Mulloidichthys vanicolensis, Family: Mullidae) were most similar to those of L. kasmira. Both species were primarily found low in the water column and were closely associated with areas of vertical relief. Individual M. vanicolensis were found higher in the water column when L. kasmirawere present, but L. kasmira were not similarly affected by M. vanicolensis. This finding suggests asymmetrical competition for shelter, in which the dominant L. kasmira displaces M. vanicolensis farther into the water column. This displacement from the protection of the reef could increase the vulnerability of M. vanicolensisto predators and fishers. ?? Springer 2005.
Suggested Citation
Schumacher, B., Parrish, J., 2005, Spatial relationships between an introduced snapper and native goatfishes on Hawaiian reefs: Biological Invasions, v. 7, no. 6, p. 925-933, https://doi.org/10.1007/s10530-004-2983-6.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Spatial relationships between an introduced snapper and native goatfishes on Hawaiian reefs |
| Series title | Biological Invasions |
| DOI | 10.1007/s10530-004-2983-6 |
| Volume | 7 |
| Issue | 6 |
| Year Published | 2005 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Biological Invasions |
| First page | 925 |
| Last page | 933 |